Simplify 1/k-1/(k+1). hence or otherwise, use the above to find a value for ∑_(k=1)^2017▒1/(k(k+1))

Marla bought a book for $12.95, a binder for $3.49, and a backpack for $44.99. the sales tax rate is 6%. find the amount of tax and the total she paid for these items

1yd 1 ft = 1 1/12 1 1/3 1 1/2 1 1/6

Answer 20 points and brainiest ! on the board, your teacher writes an example of how to find the median. one of the numbers is erased, leaving what is shown, 18, 30, 26,12 22. what is the median? a. 10 b. 20 c. 24 d. 28